CLIMATE

The climate of the Fann mountains area is a dry continental one further accentuated by the screening effect of the surrounding high ridges from the moist westerly and north-westerly winds. The annual precipitation is about 260mm. the wettest month being April. At the Alaudin and Kulikalon lakes, which are sheltered from the west by high ridges, precipitation is much less than in the upper reaches of the Arg river. The lower flow of Pasrud, Fandaria, and Lake Iskanderkul are considered arid zones.
In the Fann valleys the climate is moderately warm, the average valley temperature of the warmest month (July) is 15-20°C. Between June and October the weather is normally dry and warm. and the nights at 2500m. are also relatively warm. Winters are mild but long, the average valley temperature of the coldest month (January) is -5 to -7°C. Above about 3000m. the climate is cold and even during the 5 warmest months the average monthly temperature regions rarely rising higher than 1-10°C and snowfall is possible.
In the November-May period the mountain slopes are dangerous on account of the possibility of avalanches and most of the passes are practically impassable.